What does it say on the box? There is a "FormsCentral" desktop application that is included with Acrobat Pro XI, but not with Standard.

When you say that you go to create a form can you describe the steps and what you see? A screen shot would help a lot. I am not sure what you are seeing or what the Standard box says, but FormsCentral is not part of Acrobat Standard, only Professional XI.

Be aware that this communication was not intended or written to be used, and it cannot be used by any taxpayer, for the purpose of avoiding penalties that may be imposed on the taxpayer. (This legend has been fixed pursuant to United States Treasury Regulations governing tax practice.)

What you get with Acrobat Pro XI in relation to FormsCentral is the ability to create unlimited PDF forms. It does not give you a "subscription" to the FormsCentral service. If you want to create forms and use the FormsCentral service for both web and PDF forms and data collection and analisys you could just subscribe to FormsCentral and skip the Acrobat upgrade. You can try FormsCentral for free by signing up online to see if it would work for you. https://www.acrobat.com/formscentral/en/home.html With the free sign in you can create one web form to collect up to 50 responses, with the paid service you can also save/distribute the form as a PDF. The "form authoring" for PDF in both cases is the same.

Be aware that this communication was not intended or written to be used, and it cannot be used by any taxpayer, for the purpose of avoiding penalties that may be imposed on the taxpayer. (This legend has been fixed pursuant to United States Treasury Regulations governing tax practice.)

That question would best be asked in the Acrobat Forums, not sure if the Forms sub-forum would be best or another since it is not a form specific question... Here is the Acrobat Forums: http://forums.adobe.com/community/acrobat